Recent Papers

1) Multiple test procedures for identifying the maximum safe dose (with C.W.Dunnett, J. W.Green and J.Wetherington), JASA 2001, pp. 835-843 (Postscript file)

2) Combining global and marginal tests to compare two treatments on multiple endpoints (with B.R.Logan), Biometrical Journal, 2001, pp. 591-604 (PDF file)

3) Nonparametric multiple comparisons in repeated measures designs for data with ties (with U. Munzel), Biometrical Journal, June 2002 (44), pp. 762-779 (Postscript file)

4) Multiple test procedures for identifying the minimum effective and maximum safe doses of a drug (with B.R.Logan), JASA, March 2002, pp. 293-301 (PDF file)

5) The beta distribution as a latent response model for ordinal data (I): Estimation of location and dispersion parameters (with B.A.Ankenman and Y. Yang),   Journal of Statistical Computation and Simulation, June 2002, pp. 473-494 (PDF file)

6) Accurate critical constants for the one-sided approximate likelihood ratio test of a normal mean vector when the covariance matrix is estimated (with B.R.Logan),  Biometrics, September 2002 (58), 176-182 (PDF file)

7) On O'Brien's OLS and GLS tests for multiple endpoints (with B.R.Logan), to appear in IMS Special Volume on Multiple Comparisons

8) A superiority-equivalence approach to one-sided tests on multiple endpoints in clinical trials (with B.R.Logan), preprint (PDF File)

9) Power and sample size determination for a stepwise test procedure for finding the maximum safe dose (with K. Shi and K. Strassburger), to appear in Journal of Statistical Planning and Inference (PDF File)

10) Comparing variances of several measurement methods using a randomized block design with repeat measurements (with A. J. Hayter), preprint (PDF File)

11) Finding the maximum safe dose for heteroscedastic data (with B. R. Logan), preprint (PDF File)